No mention of germination temp but it does mention they can't take the heat/humidity of the deep south.
With few exceptions, most things love the mid 70s
No mention of germination temp but it does mention they can't take the heat/humidity of the deep south.
With few exceptions, most things love the mid 70s
Gotta LOVE those very early spring veggies! They are the only thing that gets me out of my Winter Doldrums! Pansies, too!
Automation Gibberish - Playing with Timers
My automation controllers have Timers which are count down timers that can be created to use within the logic of Scheduled Tasks or Conditional Tasks. I hadn’t really figured out how they work or how to use them until this morning.
The various sensors aren’t monitored continuously as that would take too much compute power, especially for remote devices like another control module. Those get polled every 3 seconds.
So, if I want to monitor wind speed, it’s a spot check every 3 seconds but even then, I have to set up a Conditional Task if I want to do something like close the tunnel in high winds.
The problem here on land in hill country is that I can’t just shut down the tunnel every time the wind hits 30 mph and then open it anytime it hits below 20 mph (or whatever readings I decide on) It could spend all day opening and closing repeatedly. We don’t have steady winds like on coastal or flat lands or out on a large body of water.
Solution — Timers
IF wind >30 — set Timer 1 to 10 seconds
When Timer 1 expires IF wind >30 — close tunnel
That either means the wind was 30 mph or more for 10 seconds or 30 mph or more on two occasions 10 seconds apart BUT 30 mph or more 10 seconds apart is very possible and not necessarily cause to close the tunnel.
Solution — stack Timers
IF wind >30 — set Timer 1 to 10 seconds
When Timer 1 expires IF wind >30 — set Timer 2 to 10 seconds
When Timer 2 expires IF wind >30 — close tunnel
That means the wind was over 30 mph for 20 seconds or was over 30 mph three times, 10 seconds apart. I could stack another timer in there for over 30 mph for 30 seconds or four times, 10 seconds apart.
Somewhere in there is cause to close the tunnel but I’ll have to think about what wind speed to really use and how many times to check it and how long apart I want the checks to be.
Standing outside, it’s pretty easy for us humans to make decisions based on observations like dang, it’s windy, I better close the tunnel. Converting “dang it’s windy” into numbers to tell a computer what to do is another thing.
Wind speed + temperature + wind direction = decision to close tunnel or not and how much to close it and which side and/or end to close
I need to add in, “dang it’s hot”, I better not close it all the way.
And also add in - the wind is coming from that direction so I’ll just close this side and that end.
One thing that will help smooth out the wind, so to speak, is Deadband. I can set a deadband of 2 which means 35 becomes 33 to 37 and the same thing can and should be done for temp. If it’s 92 degrees out and I use 92 as a trigger, a little wind could cool the sensor down by 1 degree and then the little wind stops and it’s back at 92, all within a few seconds and could happen repeatedly. Deadband of 2 makes it 90 to 94.
Closing it down at night when it gets cold and opening it in the morning before it gets too hot is easy. Reacting to multiple weather conditions, not so much.
I’m allowed up to 50 Scheduled Tasks and 50 Conditional Tasks per X-4xx series module(newer ones). My big module is the older X-3xx series and is dumb. I’ll have two of the 4xx series so 100 of each task type. The X-4xx modules can read from and control the X-3xx series. Should be plenty to do all the conditional stuff I need and probably too many to keep track of LOL.
I’ll have to make up a checklist of conditions to do things and then create all those as Tasks. Then when I’m out there, decide whether I need to change something. “Dang it’s windy but the tunnel hasn’t closed yet” — guess I better change it to 24 mph. I’m sure I’ll have to change a lot from my original guess work. My watering schedule for direct sown seeds has changed three times and that’s just a schedule, not conditional logic of If This, Then That.
Dang I better get out there and do stuff while it’s cool.
Thanks for that information!
I love charts
Good link. :-)
In fact, the info. says that catnip should see some afternoon shade if in the deep South. I’m “mid South”, pretty much like you, and I have areas ranging from about 3/4 sun to full shade, and sun in the morning vs. sun in the afternoon, so, I have lots I can try. I just have to get the darn things to germinate in the 1st place. :-)